Upgrade @metamask/gator-permissions-controller to version 5.0.0

A new major version of `@metamask/gator-permissions-controller`, 5.0.0, is now available. This issue has been assigned to you and your team because you code-own this package in the `core` repo. If this package is present in this project, please prioritize upgrading it soon to unblock new features and bugfixes.

Start by checking the project’s package manifests and lockfiles to confirm whether @metamask/gator-permissions-controller is present and identify the current version. Upgrade it to 5.0.0, refresh the dependency metadata, and run the relevant project checks to confirm the app still builds and tests pass.

Written by the indexing model from the issue text.